XScplinear

class sherpa.astro.xspec.XScplinear(name='cplinear')

Bases: sherpa.astro.xspec.XSAdditiveModel

The XSPEC cplinear model: a non-physical piecewise-linear model for low count background spectra.

The model is described at [1].

energy00, energy01, energy02, energy03, energy04, energy05,

energy06, energy07, energy08, energy09

Energy in keV.

log_rate01, log_rate02, log_rate03, log_rate04, log_rate05,

log_rate06, log_rate07, log_rate08, log_rate09

Log of the rate.

norm

The normalization of the model.

References

[1]	https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelCplinear.html

Attributes Summary

thawedparhardmaxes
thawedparhardmins
thawedparmaxes
thawedparmins
thawedpars
version_enabled

Methods Summary

apply(outer, *otherargs, **otherkwargs)
calc(pars, xlo, *args, **kwargs)
get_center()
guess(dep, *args, **kwargs)	Set an initial guess for the parameter values.
regrid(*arrays)
reset()
set_center(*args, **kwargs)
startup()	Called before a model may be evaluated multiple times.
teardown()	Called after a model may be evaluated multiple times.

Attributes Documentation

thawedparhardmaxes

thawedparhardmins

thawedparmaxes

thawedparmins

thawedpars

version_enabled = True

Methods Documentation

apply(outer, *otherargs, **otherkwargs)

calc(pars, xlo, *args, **kwargs)

get_center()

guess(dep, *args, **kwargs)

Set an initial guess for the parameter values.

Attempt to set the parameter values, and ranges, for the model to match the data values. This is intended as a rough guess, so it is expected that the model is only evaluated a small number of times, if at all.

regrid(*arrays)

reset()

set_center(*args, **kwargs)

startup()

Called before a model may be evaluated multiple times.

See also

teardown()

teardown()

Called after a model may be evaluated multiple times.

See also

setup()